#include <stdio.h>

int main(int argc, const char *argv[]) {
    char a[] = "hello";
    char b[] = {"hello"};
    char c[] = {'h', 'e', 'l', 'l', 'o', '\0'};
    char d[] = {'h', 'e', 'l', 'l', 'o'};
    char e[] = "world";
    printf("a:%d, b:%d, c:%d, d:%d\n", sizeof(a), sizeof(b), sizeof(c), sizeof(d));
    printf("a:%s\n", a);
    printf("d:%s\n", d);
    return 0;
}


